Steptoe, WA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Steptoe, a community in Whitman County, Washington.

This Afternoon

52°F

Mostly Cloudy

Mostly cloudy. High near 52, with temperatures falling to around 47 in the afternoon. North wind around 3 mph.

7-day forecast for Steptoe

When	Temp	Forecast	Wind	Precip
This Afternoon	52°F	Mostly Cloudy	3 mph N	4%
Tonight	34°F	Mostly Cloudy	1 mph S	4%
Wednesday	51°F	Sunny	2 mph S	1%
Wednesday Night	37°F	Mostly Cloudy then Rain Showers Likely	1 to 5 mph SE	66%
Thursday	50°F	Rain Showers Likely then Partly Sunny	5 to 9 mph SW	66%
Thursday Night	36°F	Partly Cloudy	3 to 7 mph SE	3%
Friday	52°F	Mostly Cloudy	5 to 8 mph S	7%
Friday Night	39°F	Mostly Cloudy	6 mph SE	5%
Saturday	60°F	Partly Sunny	5 to 8 mph SE	5%
Saturday Night	43°F	Mostly Cloudy then Slight Chance Rain Showers	5 to 8 mph SE	19%
Sunday	56°F	Chance Rain Showers	6 to 10 mph SW	30%
Sunday Night	39°F	Mostly Cloudy	6 mph S	12%
Monday	55°F	Mostly Cloudy then Slight Chance Rain Showers	2 to 6 mph SE	18%
Monday Night	40°F	Slight Chance Rain Showers	5 mph S	19%

Forecast source: National Weather Service (api.weather.gov) for Steptoe (47.007, -117.350). Updated through the day.

Growing snapshot for Steptoe

Last spring frost

Apr 29

First fall frost

Oct 4

Growing season

161 days

Hardiness zone

More local growing data for Steptoe: nearby ZIP 99174 weather · frost dates · planting calendar · Washington frost dates

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All Washington locations ›

Climate data from the nearest NOAA station, St John, Wa (12.4 mi from Steptoe). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.